J. P. Perdew, “Density-functional approximation for the correlation energy of the inhomogeneous electron gas,” Phys. Rev. B, 33 (1986) 8822-24. DOI: 10.1103/PhysRevB.33.8822
J. P. Perdew, “Density-functional approximation for the correlation energy of the inhomogeneous electron gas,” Phys. Rev. B, 33 (1986) 8822-24. DOI: 10.1103/PhysRevB.33.8822
